./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:17:43,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:43,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:43,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:43,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:43,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:43,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:43,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:43,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:43,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:43,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:43,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:43,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:43,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:43,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:43,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:43,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:43,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:43,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:43,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:43,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:43,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:43,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:43,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:43,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:43,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:43,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:43,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:43,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:43,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:43,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:43,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:43,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:43,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:43,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:43,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:43,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:43,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:43,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:43,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:43,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:43,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 20:17:43,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:43,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:43,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:43,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:43,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:43,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:43,216 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:43,217 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:17:43,217 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:17:43,217 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:17:43,218 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:17:43,218 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:17:43,218 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:17:43,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:43,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:43,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:17:43,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:43,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:43,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:43,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:17:43,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:17:43,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:17:43,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:43,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:43,222 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:17:43,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:43,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:17:43,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:43,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:43,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:43,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:43,224 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:17:43,225 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2022-11-02 20:17:43,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:43,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:43,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:43,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:43,568 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:43,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2022-11-02 20:17:43,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/data/f1846332f/807da33e13424765af36f987d49b1f88/FLAG888a8201a [2022-11-02 20:17:44,161 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:44,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/sv-benchmarks/c/recursive/McCarthy91-2.c [2022-11-02 20:17:44,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/data/f1846332f/807da33e13424765af36f987d49b1f88/FLAG888a8201a [2022-11-02 20:17:44,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/data/f1846332f/807da33e13424765af36f987d49b1f88 [2022-11-02 20:17:44,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:44,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:44,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:44,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:44,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:44,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b404cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44, skipping insertion in model container [2022-11-02 20:17:44,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:44,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:44,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-11-02 20:17:44,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:44,849 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:44,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-11-02 20:17:44,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:44,876 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:44,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44 WrapperNode [2022-11-02 20:17:44,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:44,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:44,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:44,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:44,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,915 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-02 20:17:44,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:44,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:44,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:44,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:44,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:44,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:44,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:44,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:44,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (1/1) ... [2022-11-02 20:17:44,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:44,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:44,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:45,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:17:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-11-02 20:17:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-11-02 20:17:45,103 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:45,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:45,206 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:45,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:45,212 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:17:45,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:45 BoogieIcfgContainer [2022-11-02 20:17:45,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:45,215 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:17:45,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:17:45,220 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:17:45,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:45,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:17:44" (1/3) ... [2022-11-02 20:17:45,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1362166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:17:45, skipping insertion in model container [2022-11-02 20:17:45,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:45,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:44" (2/3) ... [2022-11-02 20:17:45,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1362166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:17:45, skipping insertion in model container [2022-11-02 20:17:45,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:45,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:45" (3/3) ... [2022-11-02 20:17:45,225 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2022-11-02 20:17:45,286 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:17:45,286 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:17:45,286 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:17:45,286 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:17:45,286 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:17:45,287 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:17:45,287 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:17:45,287 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:17:45,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:17:45,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:17:45,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:45,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:45,328 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:17:45,328 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:17:45,328 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:17:45,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:17:45,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:17:45,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:45,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:45,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:17:45,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:17:45,342 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 14#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 6#f91ENTRYtrue [2022-11-02 20:17:45,343 INFO L750 eck$LassoCheckResult]: Loop: 6#f91ENTRYtrue ~x := #in~x; 10#L18true assume !(~x > 100); 11#L21true call #t~ret4 := f91(11 + ~x);< 6#f91ENTRYtrue [2022-11-02 20:17:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 29877, now seen corresponding path program 1 times [2022-11-02 20:17:45,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:45,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591389835] [2022-11-02 20:17:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:45,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 44821, now seen corresponding path program 1 times [2022-11-02 20:17:45,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:45,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152804796] [2022-11-02 20:17:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash 890080737, now seen corresponding path program 1 times [2022-11-02 20:17:45,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:45,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002984154] [2022-11-02 20:17:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:45,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:45,723 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:17:45,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:17:45,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:17:45,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:17:45,724 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:17:45,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:45,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:17:45,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:17:45,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-11-02 20:17:45,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:17:45,738 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:17:45,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:45,795 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:45,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:45,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:45,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:45,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:17:45,908 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:17:45,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:45,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:45,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:17:45,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:45,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:17:45,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:17:45,956 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:17:45,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:45,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:45,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:46,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:46,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:17:46,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:46,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:17:46,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:46,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:46,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:46,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:46,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:17:46,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:17:46,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:47,255 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:17:47,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:47,263 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:17:47,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:17:47,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:17:47,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:17:47,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:17:47,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:47,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:17:47,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:17:47,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-11-02 20:17:47,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:17:47,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:17:47,267 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:47,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:47,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:47,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:47,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:47,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:17:47,354 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:17:47,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:47,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:47,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:47,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:17:47,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:17:47,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:17:47,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:17:47,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:17:47,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:17:47,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:17:47,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:17:47,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:17:47,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:17:47,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:47,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:47,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:47,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:47,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:17:47,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:17:47,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:17:47,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:17:47,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:17:47,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:17:47,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:17:47,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:17:47,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:17:47,483 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:17:47,487 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:17:47,487 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:17:47,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:47,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:47,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:47,497 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:17:47,497 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:17:47,498 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:17:47,498 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2022-11-02 20:17:47,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:17:47,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:47,541 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:17:47,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-02 20:17:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:17:47,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:17:47,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:47,817 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:17:47,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:47,903 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 42 transitions. Complement of second has 12 states. [2022-11-02 20:17:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:17:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:17:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-02 20:17:47,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-02 20:17:47,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:17:47,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-02 20:17:47,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:17:47,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-02 20:17:47,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:17:47,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2022-11-02 20:17:47,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:17:47,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 19 states and 25 transitions. [2022-11-02 20:17:47,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-02 20:17:47,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-02 20:17:47,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-11-02 20:17:47,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:17:47,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-02 20:17:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-11-02 20:17:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-02 20:17:47,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 20:17:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-02 20:17:47,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-02 20:17:47,952 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-02 20:17:47,952 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:17:47,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-11-02 20:17:47,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:17:47,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:47,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:47,954 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:47,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:47,955 INFO L748 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 103#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 108#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 110#f91ENTRY ~x := #in~x; 113#L18 assume !(~x > 100); 105#L21 call #t~ret4 := f91(11 + ~x);< 114#f91ENTRY ~x := #in~x; 115#L18 assume ~x > 100;#res := ~x - 10; 116#f91FINAL assume true; 104#f91EXIT >#27#return; 106#L21-1 [2022-11-02 20:17:47,955 INFO L750 eck$LassoCheckResult]: Loop: 106#L21-1 call #t~ret5 := f91(#t~ret4);< 109#f91ENTRY ~x := #in~x; 118#L18 assume !(~x > 100); 107#L21 call #t~ret4 := f91(11 + ~x);< 109#f91ENTRY ~x := #in~x; 118#L18 assume ~x > 100;#res := ~x - 10; 112#f91FINAL assume true; 117#f91EXIT >#27#return; 106#L21-1 [2022-11-02 20:17:47,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:47,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1243034264, now seen corresponding path program 1 times [2022-11-02 20:17:47,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:47,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320001451] [2022-11-02 20:17:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:47,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:47,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:47,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:47,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:47,978 INFO L85 PathProgramCache]: Analyzing trace with hash 742678306, now seen corresponding path program 1 times [2022-11-02 20:17:47,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:47,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216399828] [2022-11-02 20:17:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:47,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:47,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:48,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:48,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash -291973751, now seen corresponding path program 1 times [2022-11-02 20:17:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:48,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84417696] [2022-11-02 20:17:48,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:48,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:48,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:48,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:48,261 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:17:48,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:17:48,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:17:48,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:17:48,266 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:17:48,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:48,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:17:48,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:17:48,266 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2022-11-02 20:17:48,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:17:48,267 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:17:48,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:48,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:48,276 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:17:48,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:17:48,333 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:17:48,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:48,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:48,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:48,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:17:48,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:48,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:17:48,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:17:48,361 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:17:48,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:48,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:48,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:48,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:48,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:17:48,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:48,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:17:48,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:17:48,426 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:17:48,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:48,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:48,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:48,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:48,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:17:48,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:17:48,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:17:48,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:48,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:48,536 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:48,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a905b7b0-b06e-4c39-a4e9-097ace2590fd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:17:48,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:17:48,538 INFO L160 nArgumentSynthesizer]: Using integer mode.